in medford, massachusetts, the funeral for 29-year-old victim, krystle campbell began just over an hour ago and at 2:50 p.m., president obama will join the city of boston in a moment of silence, mayor menino will observe the time from boston common. joining me washington bureau chief of the the "huffington post," graham, and the grio editor, joy reid and the deputy director of the "national journal." >> and pete, there's a lot of information that's come out over course of the weekend. we know that the fbi is interrogating dzhokhar tsarnaev. what are they hoping to get from him at this point? >> interrogating may be a bit of a grand word here, because it's certainly not the kind of interrogation they had planned, where they speak to someone. it's being conducted with notes and nods and because he can't speak, he's on a ventilator. so it's a very slow process. but during this period, their government is limited in terms of what they can ask him. because they're doing this public safety exception to the miranda rule. they've not advised him of his rights. so they can only ask about potenti